The Wossner 8660DA forged piston kit features a 96.00mm bore and is designed for Honda TRX450R ATV models from 2006 to 2009. Manufactured in Germany, this piston ensures strength, consistent heat management, and durability through its forged construction and elliptical design that distributes pressure uniformly under expansion.

Features

• Forged piston construction for strength and durability


• Optimized heat transfer from combustion chamber to cylinder walls


• Elliptical shape provides uniform bearing surface under thermal expansion


• Prevents piston collapse and localized pressure


• Manufactured in Germany

Specifications

• Bore: 96.00 mm


• Actual Bore Diameter: 95.95 mm


• Display: 450 cm³


• Hub Stroke: 62.00 mm


• Clearance: 0.05 mm


• Compression Height: 23.80 mm


• Dome Volume: -0.20 cm³


• Wossner Compression Ratio: OEM


• OEM Compression Ratio: 12.00:1


• Theoretical Weight: Not specified

Cross-Reference OEM Part Numbers

• Piston: 8660DA


• Lock: CW19


• Pin: WP037


• Ring Set: 960XSY


• Rod: P4023


• Part No.: 56-W4899.WO


• OEM Reference: 13101-HP1-600, 4899M09600

Vehicle Fitments

• Honda TRX450R 2006–2009